:root {
  --bg: #f9fafb; --card: #fff; --fg: #111827; --muted: #6b7280; --line: #e5e7eb;
  --accent: #2563eb; --ok: #15803d; --err: #b91c1c; --run: #b45309;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b0f17; --card: #151b26; --fg: #e5e7eb; --muted: #9ca3af; --line: #263041; --accent: #60a5fa; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); padding-bottom: calc(64px + env(safe-area-inset-bottom)); }
header { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; gap: .5rem;
  padding: calc(env(safe-area-inset-top) + .6rem) 1rem .6rem; background: var(--card); border-bottom: 1px solid var(--line); }
header h1 { font-size: 1.05rem; margin: 0; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#back { order: -1; background: none; border: 0; color: var(--accent); font-size: 1rem; padding: 0; }
main { padding: .75rem 1rem; max-width: 760px; margin: 0 auto; }
nav#tabs { position: fixed; bottom: 0; left: 0; right: 0; display: flex; background: var(--card);
  border-top: 1px solid var(--line); padding-bottom: env(safe-area-inset-bottom); }
nav#tabs button { flex: 1; background: none; border: 0; padding: .9rem 0; color: var(--muted); font-size: .85rem; }
nav#tabs button.on { color: var(--accent); font-weight: 600; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: .75rem .9rem; margin: .5rem 0; }
.card.link { cursor: pointer; }
.row { display: flex; gap: .5rem; align-items: center; }
.meta { color: var(--muted); font-size: .8rem; margin-top: .2rem; overflow-wrap: anywhere; }
.badge { font-size: .72rem; font-weight: 600; padding: .1rem .45rem; border-radius: 999px; border: 1px solid currentColor; white-space: nowrap; }
.s-done { color: var(--ok); } .s-failed { color: var(--err); } .s-running { color: var(--run); } .s-queued { color: var(--muted); }
input, textarea { width: 100%; font: inherit; padding: .65rem .75rem; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--fg); }
button.primary { font: inherit; padding: .65rem 1rem; border-radius: 10px; border: 0; background: var(--accent); color: #fff; font-weight: 600; white-space: nowrap; }
button.ghost { font: inherit; padding: .5rem .8rem; border-radius: 10px; border: 1px solid var(--line); background: none; color: var(--fg); }
h2 { font-size: .95rem; margin: 1.1rem 0 .3rem; color: var(--muted); font-weight: 600; }
details { margin: .5rem 0; } summary { cursor: pointer; font-weight: 600; padding: .4rem 0; }
pre { white-space: pre-wrap; font-size: .8rem; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: .6rem; overflow-wrap: anywhere; }
.md h2 { color: var(--fg); font-size: 1.05rem; } .md h3 { font-size: .95rem; }
.md p, .md li { line-height: 1.5; } .md blockquote { margin: .5rem 0; padding-left: .7rem; border-left: 3px solid var(--line); color: var(--muted); }
.md code { font-size: .85em; background: var(--line); padding: 0 .25rem; border-radius: 4px; }
.md a { color: var(--accent); overflow-wrap: anywhere; }
.frames { display: grid; grid-template-columns: repeat(3, 1fr); gap: .35rem; }
.frames img { width: 100%; border-radius: 6px; background: var(--line); aspect-ratio: 9/16; object-fit: cover; }
#toast { position: fixed; left: 50%; bottom: calc(76px + env(safe-area-inset-bottom)); transform: translateX(-50%);
  background: var(--fg); color: var(--bg); padding: .55rem .9rem; border-radius: 10px; font-size: .9rem; opacity: 0; transition: opacity .2s; pointer-events: none; max-width: 90vw; }
#toast.show { opacity: 1; }
.empty { color: var(--muted); text-align: center; padding: 2rem 0; }